Herndon W A, Sullivan J A, Yngve D A, Gross R H, Dreher G
J Bone Joint Surg Am. 1987 Jul;69(6):851-9.
Fifty-eight patients who had scoliosis or kyphosis of varying etiologies were followed for a minimum of two years (average, forty-four months) after segmental spinal instrumentation using sublaminar wires. In eight (19 per cent) of the patients who had been operated on for scoliosis one or both rods broke. The average time that had elapsed before the breakage was discovered was twenty-three months. None of the patients in whom a rod had broken had had postoperative immobilization or a first-stage anterior fusion, and only one had had supplementary grafting with banked bone. Instrumentation to the pelvis was also associated with a greater incidence of broken rods. The use of supplementary grafting with banked bone or the use of postoperative immobilization significantly decreased the loss of postoperative correction. Preliminary anterior spinal fusion helped prevent breakage of rods but not loss of correction. It was concluded that postoperative immobilization and use of large amounts of supplementary bone graft lead to better results when using this implant system.
58例因各种病因导致脊柱侧弯或后凸的患者，在采用椎板下钢丝进行节段性脊柱内固定术后，至少随访了两年（平均44个月）。在接受脊柱侧弯手术的患者中，有8例（19%）一根或两根棒材断裂。发现棒材断裂前经过的平均时间为23个月。棒材断裂的患者中，无一例术后进行过制动或一期前路融合，只有1例使用了库骨进行补充植骨。固定至骨盆也与棒材断裂的发生率较高相关。使用库骨进行补充植骨或术后制动可显著减少术后矫正丢失。初步前路脊柱融合有助于防止棒材断裂，但不能防止矫正丢失。得出的结论是，使用这种植入系统时，术后制动和使用大量补充骨移植可取得更好的效果。
